Patent US2709642A successfully refreshed from Google Patents.
US2709642A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Chemical reactor
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1951-12-03
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Granted: 1955-05-31
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Expires: 1971-12-03
Abstract
No abstract record available.
Inventors
- 👤 Jr Matthew D Mann
- 👤 Helmuth G Schncider
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 12:30
CPC Classifications
C; C08; C08F; C08F10/00; C08F36/00; C08F36/02; C08F36/04; Y; Y10; Y10S; Y10S526/00; Y10S526/918
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
117 words
A POLYMERIZER SYSTEM COMPRISING AN INCLINED TUBULAR REACTOR MEMBER HAVING A MOVABLE PISTON-TYPE BOTTOM, AN UPPER OPENING FOR PRODUCT DISCHARGE, SUPPLY MEANS FOR DELIVERING TO SAID REACTOR LIQUID POLYMERIZABLE UNSATURATES AND FLUID CATALYST; A PRODUCT RECEIVER HAVING AN UPPER PRODUCT RECEIVING OPENING, A GAS VENT, AND A BOTTOM DISCHARGE OPENING; THE UPPER PORTION OF SAID TUBULAR REACTOR OPENING DIRECTLY INTO THE UPPER PORTION OF SAID PRODUCT RECEIVER, AND MEANS FOR RECIPROCATING SAID REACTOR BOTTOM ALTERNATELY TO ENLARGE THE REACTOR VOLUME BY LOWERING THE BOTTOM TO PERMIT CHARGING WITH LIQUID REACTANTS AND CATALYST AND THEN TO RAISE THE BOTTOM TO FORCE SUBSTANTIALLY ALL OF THE RESULTANT VISCOUS ADHERENT POLYMERIZATION PRODUCT OUT OF THE REACTOR INTO THE PRODUCT RECEIVER.
Claim 2
Dependent Claim
117 words
A POLYMERIZER SYSTEM COMPRISING AN INCLINED TUBULAR REACTOR MEMBER HAVING A MOVABLE PISTON-TYPE BOTTOM, AN UPPER OPENING FOR PRODUCT DISCHARGE, SUPPLY MEANS FOR DELIVERING TO SAID REACTOR LIQUID POLYMERIZABLE UNSATURATES AND FLUID CATALYST; A PRODUCT RECEIVER HAVING AN UPPER PRODUCT RECEIVING OPENING, A GAS VENT, AND A BOTTOM DISCHARGE OPENING; THE UPPER PORTION OF SAID TUBULAR REACTOR OPENING DIRECTLY INTO THE UPPER PORTION OF SAID PRODUCT RECEIVER, AND MEANS FOR RECIPROCATING SAID REACTOR BOTTOM ALTERNATELY TO ENLARGE THE REACTOR VOLUME BY LOWERING THE BOTTOM TO PERMIT CHARGING WITH LIQUID REACTANTS AND CATALYST AND THEN TO RAISE THE BOTTOM TO FORCE SUBSTANTIALLY ALL OF THE RESULTANT VISCOUS ADHERENT POLYMERIZATION PRODUCT OUT OF THE REACTOR INTO THE PRODUCT RECEIVER.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-05-30 | 1958-11-29 | 1959-05-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-05-30 | 1962-11-29 | 1963-05-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-05-30 | 1966-11-29 | 1967-05-31 | $7700.00 | Window Closed / Lapsed |